| 1 |
It is an anti -viral proteins. |
- A. Vaccines
- B. bet- endorphin
- C. Interferon
- D. Growth hormone
|
| 2 |
Symbol and formulae of the reactants are written on....... side fo arrow. |
- A. Left
- B. Right
- C. Upward
- D. Both side
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| 3 |
When light falls on transparent object such as air, water, glass ,etc. It passes through them unchanged, it is called. |
- A. Absorption
- B. Reflection
- C. Transmission
- D. Diffusion
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| 4 |
During the combustion of fossil fuel. Which gas is ener the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon di oxide
- D. Hydrogen
|
| 5 |
It takes about.......... minutes for light from the Sun to reach the Earth. |
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| 6 |
In humans, a sperm has 23 chromosomeds. Egg cell has. |
- A. 23 chromosomes
- B. 46 chromosomes
- C. No chromosomes
- D. 69 Chromosomes
|
| 7 |
How is the angle of incidence related to the angle of reflection. |
- A. It is greater
- B. It is smaller
- C. It is same
- D. None of these
|
| 8 |
All acids have a taste. |
- A. Sweet
- B. Sour
- C. Bitter
- D. Salty
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| 9 |
A symbiotic relationship in whihc both speciesl get benefit is called. |
- A. Commensalism
- B. Hebitate
- C. Mutualism
- D. Symbiosis
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| 10 |
The three key ingredients used in making soap are. |
- A. Oil, lye, water
- B. NaOH , Oil, lye
- C. Glycerol, oill, lye
- D. glycerol, water, oil
|